ludion
French, noun\ly.djɔ̃\
ludion is spelled L-U-D-I-O-N (6 letters) and appears about once in every 28 million words in written French, the 170,198th most frequent French word form (wordfreq, 2021 data). Ludion is a French masculine noun meaning “Cartesian diver” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Montage de physique amusante montrant la faible compressibilité des liquides par rapport à l’air. Un objet…”.
What does ludion mean in English?
noun
- 1
masculineCartesian diver
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Montage de physique amusante montrant la faible compressibilité des liquides par rapport à l’air. Un objet creux et rempli d’air est immergé dans un récipient fermé par une membrane. Une pression sur cette membrane fait descendre l’objet creux et l’arrêt de la pression le fait remonter. 2. Personne légère et fantasque. 3. Danseur.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of ludion
- ludions plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce ludion?
- \ly.djɔ̃\
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
How common is ludion in French?
ludion appears about once in every 28 million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).